Side lamp for automobiles.



F. CONRAD.

SIDE LAMP FOR AUTOMOBILES. APBUCATION FILED 056.26, l9l3.

l ,296, 482 Patented M51; 4:, 19M

wzmassas; INVENTOR ,wwo add I A W f f I i Q I/L/ ATTORNEY FRANK conaen, or

anion.

PITTSBURGH, PENNSYLVANIA, ASSIGNOB. T0 WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

SIDE LAMP FOR AUTOMOBILES.

Specification of Letters Patent.

Patented Mar. a, rare.

Application filed December 26, 1913. 7 Serial No. 808,781.

. vide a simple and convenient means for "Tight vehicle body, only lighting certain portions of such vehicles.

In the operation of motor vehicles at night over roads or streets that are poorly lighted or are in darkness, it is often a matter of inconvenience in operating and repairing the vehicle, as well aS in entering and alighting from it, that the sides of the vehicle and the adjacent roadway are not sufficiently illumined.

I haveprov'ided a side lamp having a reflector located in the rear portion of the lamp structure which operates to illumine the sides of the vehicle including the running board and in addition, a portion of the adjacent roadway. The lamp is so constructed that the light thus given out does not affect the vision of the operator.

In the accompanying drawings, Figure 1 is a side view, in elevation, of a portion of an automobile with my invention attached thereto. Fig. 2 is a side view, in section, of a lamp constructed in accordance with my invention. Fig. 3 is a rear view, in elevation, diagrammatic view illustrating a portion of the lamp and its effect upon a portion of the rays transmitted by it. Referring particularly to.Fig. 1, an automobilel comprises the usual engine hood 2, dashboard 3, fore door 4, drivers seat 5 and running board 6. Side lamps 7 are mounted upon the dashboard oat each side of the one lamp being shown. The lamps 7 serve to illumine the forward portion of the vehicle and a small portion of the roadway in front of it. The lamps 7 also serve to illumine the sides of the vehicle, including the running board 6, and a portion of the roadway at the sides of the vehicle. s

Referring now to Figs. 2 and 3, the side lamp 7 comprises a casing 8 having a body portion 9 that is of substantially cylin drical form. A reflector 10 of any suitable a circular opening 21.

opening-21 is below the axis of the lamp of the lamp of Fig. 2. Fig. 4: is a shape, such as a parabola in section, and

a glass 11 are retained in position by a flanged sleeve 12 which clamps them against the edge of the casing 8. The sleeve 12 is retained by a raised portion 13 of the casing 8 that engages a corresponding groove 14 in the sleeve. vided with an axial opcningil-d and a slot 16 that is indicated by dotted lines (Fig. 2), to receive, respectively, an incandescent lamp bulb 17 and a connector 18 for the lamp. The connector 18, which projects through a suitable opening in the casing 8, is rigidly retained in position by a suitable set screw 19 and a flange 20 that is integral with the casing 8.

The rear end of the lamp .7 is partially in.

closed by the casing 8 which is provided with The center or the in order that the greater portion of the light rays passing through the opening may have a downward direction. The openiug is fitted with a glass 22 having two horizontally extending prisms 23 upon its outer surface to form, in effect, a lens. The glass 22 is retained in position by a flexible ring 24 which engages a groove 25 in the casing'and by a flange 26 that is integral with the casing. Approximately the upper half of the opening is provided with curved reflectors 27 and 28 which are respectively within and without the casing 8 and on opposite sides of the glass 22. The reflectors.

27 and 28 are retained in position by suitable screws 29 which draw together the respective flange portions 30 and 31 (Fig. 4). The reflectors 27 and 28 serve to direct the light rays from the bulb 1'8. downwardly and rearwardly. The reflector 28 serves also as a shield to prevent the rays of light from the bulb 17 from reaching the eyes of the operator.

The eflect of the prisms 23 of the glass 22 andof the reflectors 27 and 28 upon the raysof light which are transmitted by the glass 22, is clearly illustrated in Fig. 4c. The rays which strike the reflectors, are directed downwardly as shown while the rays passing through the prisms 23 are refracted downwardly. The rays which pass through that portion of the glass 22 which is below the prisms 22 have an angle to the horizontal sufiiciently large to render deflecting means unnecessary.

The reflector 10 is pro-i The result is to thoroughly illumine the sides of the Vehicle and thus enable the operator to readily attach or detach articles such extra tires that may be carried or to manipulate the valves ofprestolite tanks that are usually located on the running boards of the vehicles; Sufficient light is furnished to enable the operator to make ordinary repairs, such as changing tires. This result is obtained without'the use of additional power or fixtures. These and other advantages will be apparent to those skilled in the art to which my invention ap pertains.

I claim as my 1 invention:

1. The combination with a casing, and a source of light within the casing, of a reflector within said casing provided with an opening, a lens adjacent said opening and a second reflector adjacent said lens and without said casing.

2. The-combination with a casing, a reflector Within said casing that IS provided w th front and rear openings, and a source of light within said reflector, of a' lens adjacent the rear opening, and additional reflectors adjacent said lens.

3'. The combination with a casing, a reflector in said casing having a rear opening and .a source of light within said reflector and adjacent said opening, of means for directing downwardly the light rays passing through said opening, said means comprlsing a glass prism and a reflector adjaoent said prism.

In testimony whereof, I have hereunto subscribed my name this 19th day of Dec.

FRANK CONRAD. Witnesses:

A. P. SUNNERGREN, B. B. Hmns. 

